Question

factorizeaza: 9t^2 - u^2
2c-4d-pc+2pd

Answer 1

9t² - u² = 3²t² - u² = (3t - u)(3t + u)

2c - 4d - pc + 2pd = 2(c - 2d) - p(c - 2d) = (c - 2d)(2 - p)

Answer 2

9 t² - u ²= ( 3 t + u ) ( 3 t - u ) 

2 c - 4 d - pc + 2 pd = c ( 2 - p) - 2 d ( 2 - p) = ( 2 - p) ( c - 2 d)